package com.leejie.config;


import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class LoginInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        HttpSession session = request.getSession();
//        System.out.println("URI:---- "+request.getRequestURI());
//        session.setAttribute("username","leejie");
        Object username = session.getAttribute("username");
        if (username == null || username.equals("")){
            request.setAttribute("msg", "无权限请先登录");
            request.getRequestDispatcher("/index").forward(request, response);
//            response.sendRedirect("index");
            return false;
        }
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
    }
}
